Home / 12,192.34-18,290.01-4,292.98

Finding the Fourth Proportional to 12,192.34, 18,290.01 and 4,292.98

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Solution

The fourth proportional to 12,192.34, 18,290.01 and 4,292.98 is: 6,440.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,192.34 : 18,290.01 = 4,292.98 : x
  2. Step 2: Convert to fraction form
    12,192.34/18,290.01 = 4,292.98/x
  3. Step 3: Cross multiply
    12,192.34x = 18,290.01 × 4,292.98
  4. Step 4: Simplify right side
    12,192.34x = 78,518,647.13
  5. Step 5: Solve for x
    x = 78,518,647.13/12,192.34
  6. Step 6: Final answer
    x = 6,440.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.